1. X based system status monitor ProcMeter displays constantly updating graphs of system information. Many different graphs are supported, including: APM information. Mailbox monitoring. Date, time, uptime. Amount of free and used disk space. Size, number of lines, rate of growth of log files. Amount of used and free memory and swap. Traffic on network devices. Load average, number of processes running and starting. Low level system statistics like CPU usage, disk usage and swapping. Wireless network link quality. As if all that wasn't enough, procmeter is designed to be easily extendable via plugins. From Debian 3.0r0 APT